That one was recorded on TV4 HD at 0.8W
I just tried the latest openpli-4.0-beta-dm800se-20141107, that's supposed to have ac3+ patch?
The sound is slightly better but I can still hear the sound getting distorted especially when music is played. Not that easy to distinguish if just talk...
I also hear the "artifacts" on lower bitrate AC3 now, like this 6ch 384kbit grabbed from C More Hits...